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Use Dynamo for programming and design automation. Define scripts and routines in a visual environment to design and expedite workflows.

Storm and sanitary analysis

Set individual tailwater conditions for each designed storm, use dimensionless Hydrographs per sub-basin, and use new storage chambers
by ADS.

Gravity network analysis

Use the updated Analyze Gravity Network dialog to analyze a pipe network and apply the results.

User interface

Discover the updated interface, optimized for display on high-resolution monitors. Use more intuitive command definitions to easily
interact with Civil 3D.

More Features

Relative elevation feature lines

Obtain feature lines from a surface or relative to a surface, so feature lines update with changes to the surface. Feature line
elevations
can be obtained from a surface and can also be relative to a surface, so if the surface is updated, the feature line is updated. The update
behavior
of relative feature lines is different depending on whether the feature line was set to be relative to a surface when it was created, or whether
it
was created at absolute elevations and then set to be relative.

Dynamic offset profiles

Create dynamic offset profiles using a default cross slope. Modify them by editing the profile properties. You can create dynamic
offset
profiles using the same command you use to create offset alignments. The profile geometry is offset using a default cross slope which you can
modify
by editing the profile properties.

Connected alignments

Create a new dynamically linked alignment and profile that transitions between 2 intersecting alignments and their profiles. You can
use
the connected alignments feature to create an alignment that transitions between two intersecting alignments and to create a profile that
transitions
between their profiles. You can use this feature to create a curb return, an exit ramp, a merging/diverging road, or you can connect an existing
road
with a proposed road.

Pipe sizing and analysis

Resize pipes and reset inverts, and compute the energy and hydraulic grade lines according to HEC-22 2009 standards.

Plan and profile sheet generation

Create plan/plan and profile/profile sheets by including multiple plan or profile views on a single sheet. Use AutoCAD Civil 3D plan
production tools to quickly create construction documents from drawings. You can create plan/profile, plan(s)-only, profile(s)-only, and section
sheets. The workflow is different for each.